In this case I think you can't blame UVC, because it is shown your USB host
controller can not get descriptor successfully, let alone to let UVC driver
bind the device. So I think you should first check the device. See if its
working anywhere. Or check the roothub of the port, maybe it has something
wrong on it.
In anycase, it has nothing to do with UVC module because the host controller
driver doesn't even have a chance to bring up the UVC driver.



2009/12/18 蔚艳斌 <yybingyyb...@gmail.com>

> Hi,
>   After I configed USB_VIDEO_CLASS,  when I plug the UVC Device to the
> board, and "dmesg",  there will be some error message as fllowing:
>
> usb 1-1.4: device descriptor read/64, error 2
> usb 1-1.4: new full speed USB device using musb_hdrc and address 5
> usb 1-1.4: device descriptor read/64, error 2
> usb 1-1.4: device descriptor read/64, error 2
> usb 1-1.4: new full speed USB device using musb_hdrc and address 6
> usb 1-1.4: device descriptor read/8, error 2
> usb 1-1.4: device descriptor read/8, error 2
> usb 1-1.4: new full speed USB device using musb_hdrc and address 7
> usb 1-1.4: device descriptor read/8, error 2
> usb 1-1.4: device descriptor read/8, error 2
>
> and lsmod
>
> Module                  Size  Used by
> ipv6                  235192  12
>
> I guess that the dirver hadn't insmod, so entry the UVC directory and
> "modprobe uvcvideo"
>
> Module                  Size  Used by
> uvcvideo               54152  0
> compat_ioctl32          1216  1 uvcvideo
> videodev               31648  1 uvcvideo
> v4l1_compat            14500  2 uvcvideo,videodev
> ipv6                  235192  12
>
> Then plug the UVC Device again, dmesg , nothing about UVC append.
>
> lsusb, I can't find the DeviceId and VenderId about my UVC device. Is there
> anything wrong ?
>
> --
> Best Regards
>
> 2009/12/19 Brian Pin <shaohu...@gmail.com>
>
>> Hi
>> 2.6.28 already contains uvc host driver implementation.
>> You just need to find out 'USB_VIDEO_CLASS' during config. then you will
>> have the uvc driver support
>>
>>
>>
>> On Fri, Dec 18, 2009 at 5:33 PM, 蔚艳斌 <yybingyyb...@gmail.com> wrote:
>>
>>> Hello everyone,
>>>
>>>         My uvc devic ID is 0c45:62c0 . I can use it in my VM which os is
>>> ubuntu 8.04. We want to use it in the OMAP3530-MINI board.
>>> I don't know how complier the UVC source in my VM and then it can be used
>>> in the OMAP3530-MINI. By the way, the kernel version is 2.6.24-26-generic in
>>> my VM and it in the OMAP3530-MINI is 2.6.28.
>>>
>>>         Could someone help me?
>>>         Sorry for my pool English.
>>>
>>> Best wishes.
>>> _______________________________________________
>>> Linux-uvc-devel mailing list
>>> Linux-uvc-devel@lists.berlios.de
>>> https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
>>>
>>>
>>
>>
>> --
>> Best Regards
>>
>>
>


-- 
Best Regards
_______________________________________________
Linux-uvc-devel mailing list
Linux-uvc-devel@lists.berlios.de
https://lists.berlios.de/mailman/listinfo/linux-uvc-devel

Reply via email to